Those who have never been to Japan might be spooked out to see all the people wearing masks in public. Even before the swine flu emerged, Japanese people have worn these white masks in the winter to prevent from catching cold (or not giving others their colds.)

<風邪の予防 ( = kaze no yobou) How to prevent from catching a cold! >

人混みに出る時はマスクを着用すること。

= Hitogomi ni deru toki wa masuku wo chakuyou suru koto.

= When you go out in a crowded area, be sure to wear a mask.

帰宅したら手洗いとうがいをすること。

= Kitaku shitara tearai to ugai wo suru koto.

= When you come back home, wash your hands and gargle!

We have been taught to wash our hands and gargle in the winter to avoid catching colds at school and at home.

I think someone else has just asked me the usage of ~ga suru.
Sometimes we use ~ ga suru to express one’s feelings or symptoms.
zutsuu ga suru = to have a headache
Ki a suru = to feel like ~
memai ga suru = to feel dizzy

And the difference between “wa” and “ga” is on the request list. Please wait patiently. It will take a lot of time to make that lesson.

Hello Josefin,
When you translate them, it could the same but the difference is
Kaze wo hiku = to catch a cold, to have a cold (You are talking about the process of getting a cold)
Kaze desu. = What I (you) have is a cold.(you are talking about the symptoms or the name of the disease you have.)

Your lessons are so great! I have learnt a lot of colloquial Japanese from them already, and best of all they are fun to read! You are doing a great service to the Japanese-learning community. Please keep up the good work, and I look forward to your next lesson!

(p.s. I just donated, please make sure Maggie gets a nice new toy for Christmas from me!)

Thank you so much for your nice comment and your donation! We really appreciate your support and yes! I will get a new bone for sure!
Yukari and I are now making a new lesson. Please visit here again!
Arigatou!!!